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Reducing examination table paper (ETP) use may help curb carbon emissions from health care. Six participants applied Glo Germ (DMA International) to their hands before a common physical examination (abdominal, cardiorespiratory, hip and knee) both with and without ETP. After each exam, UV light was shined on the exam table and photographs were taken. The number of hand touches on ETP-covered areas and uncovered areas were tallied and compared using t tests. Despite covering more surface area, participants touched areas without ETP significantly more than ETP-covered areas (P https://doi.org/10.1370/afm.3092, INTRODUCTION Climate change negatively impacts mental health, respiratory and cardiac disease, and quality-adjusted life years. (1) Waste from health care is a major contributor to its negative environmental impact, (2-4) [...]

The International World Conference on Titanium has been bringing together scientists and engineers researching many areas of titanium development, manufacture, and implementation since 1968. The conference was initially organized by [...]

Addressing solid waste recycling, this study aims to develop biodegradable kraft paper from buffing dust (BD) and post-consumed jute fiber (JF). Employing a simple solution casting method with a polyurethane binder, the kraft paper was fabricated and characterized using UV-Vis spectroscopy, FTIR, XRD, SEM, TGA, OTR, biodegradability, and tensile tests. The findings revealed covalent and hydrogen bonding between BD and JF, forming a uniform surface. Notably, the composite exhibited improved thermal stability, enhanced gas barrier properties, and biodegradability compared to individual components. Furthermore, the composite also showed 57% higher tensile strength, 38% greater elongation, 20% increased hardness, and 9% higher density compared to buffing dust. Compared to jute fiber, the increases were 125%, 91%, 30%, and 19% respectively. Moreover, the composite excelled in gas barrier performance, surpassing BD and JF by a remarkable 61% and 73% increase respectively. These significant findings underscore the vast potential of the composite kraft paper as a versatile material suitable for various applications, including packaging, interior furnishing industries, and reinforcing elements in the footwear industry. By addressing waste management and promoting sustainability, this research contributes to the development of ecofriendly materials that align with contemporary environmental concerns. Highlights * Covalent and hydrogen bonding enhance uniformity. * Biodegradable kraft paper with improved properties. * Impressive tensile strength, elongation, and hardness. * Versatile material for eco-friendly applications. * Promotes sustainability and waste management. KEYWORDS buffing dust, eco-friendly packaging, kraft paper, polymer composite, solid waste management, 1 | INTRODUCTION The paper industry heavily relies on natural resources like wood, which has resulted in significant environmental pollution. Therefore, alternatives are urgently needed to reduce the negative impact [...]

Meta-aramid paper has been widely used in transformers because of its excellent insulation properties and thermal stability. However, with the rapid development of high-voltage transformers, higher requirements are placed on the breakdown strength of meta-aramid paper. In this study, meta-aramid chopped fibers/polyphenylene sulfide (MACFs/PPS) composite paper was prepared by a combination of wet-copying and hot-rolling technology. Then the microscopic morphology, mechanical properties, crystallization behavior, insulation properties, and thermal stability of the MACFs/PPS composite paper were studied and evaluated. The experimental results showed that the breakdown strength of the MACFs/PPS composite paper was as high as 46.46 kV/ mm, which was 2.7 times higher than the famous Nomex T410 insulating paper. Meanwhile, the MACFs/PPS composite paper presented good mechanical properties and thermal stability. This paper provides a simple and versatile method for the preparation of meta-aramid composite paper with high breakdown strength. KEYWORDS breakdown strength, mechanical properties, meta-aramid paper, polyphenylene sulfide superfine fiber, 1 | INTRODUCTION Meta-aramid fibers are one kind of high-performance fibers, which have high specific strength, modulus, excellent thermal stability and insulating properties because of their highly oriented hydrogen bonds [...]

Digital printing waste paper fiber/nanocrystalline cellulose/poly(lactic acid) composites, modified through [gamma]-methacryloxy propyl trimethoxy silane (KH570), isopropyl tri(dioctylpyrophosphate) titanate, sodium hydroxide, polyethylene glycol 6000 (PEG6000), and a composite silane coupling agent (KH570/PEG6000), were fabricated by melt blending and injection molding, and the effects of different modifiers on the properties of composites were studied. The results show that the mechanical properties of the modified composites were improved, and the best flexural strength, tensile strength, and impact strength were obtained by PEG6000, KH570/PEG6000, and KH570, respectively. Thermogravimetric analysis showed that the thermal decomposition performance of the composites treated by KH570 was relatively superior. Differential scanning calorimetry analysis demonstrated that the melting enthalpy and crystallinity of the modified material increased, while the cold crystallization temperature decreased. After modification, both water absorption and degradation showed a decreasing trend, especially KH570/PEG6000. Under the action of several modifiers, the diffusion coefficient, thermodynamic solubility, and permeability of composites were reduced to varying degrees. Furthermore, scanning electron microscopy demonstrated that interfacial adhesion and composite compatibility were improved with significantly fewer and smaller pores, as well as a fuzzy boundary among the three phases. KEYWORDS composites, diffusion coefficient, digital printing waste paper fiber, interfacial modifier, nanocrystalline cellulose, poly(lactic acid), 1 | INTRODUCTION With the continuous development of an industrial society, nonrenewable resources such as petroleum resources and plastic products have been consumed in enormous quantities, and their nondegradability has [...]

Abstract Poly-m-phenyleneisophthalamide (PMIA) with excellent chemical stability and breakdown strenth is regarded as the next generation of insulating paper in power system. However, the basic intensity of PMIA is not [...]

Some publishers say they are battling industrialized cheating. A Nature analysis examines the 'paper mill' problem -- and how editors are trying to cope. Some publishers say they are battling industrialized cheating. A Nature analysis examines the 'paper mill' problem -- and how editors are trying to cope., Author(s): Holly Else, Richard Van Noorden Author Affiliations: Illustration by Ana Kova Cartoon of researchers looking at a stack of papers with Western Blots. A magnifying glass shows the blots [...]

The ASM Heat Treating Society established the Best Paper in Heat Treating Award in 1997 to recognize a paper that represents advancement in heat-treating technology, promotes heat treating in a [...]

The winner of the 2023 ASM HTS/Bodycote Best Paper in Heat Treating Award is entitled 'Flux Analysis of Nitrogen and Carbon during Nitriding and FNC Heat Treating,' by Haoxing You. [...]

Technopoiesis was previously identified as the juvenile phase of expression of a technique that spontaneously evolves towards technopraxis as soon as the perspectives of practical use of the end-products overcome the cosmological resonance of the process itself. This view is re-examined considering the data and analyses exposed in 'Refining technopoiesis: Measures and Measuring Thinking in Ancient China,' in which a coexistence of the technopoiesis and technopraxis approaches of technics is suggested., Author(s): Nissim Amzallag [sup.1] Author Affiliations: (1) grid.7489.2, 0000 0004 1937 0511, Department of Bible, Archaeology and Ancient Near Eastern Studies, Ben-Gurion University of the Negev, , Beer Sheba, Israel [...]

This is the second paper in an anticipated three-part study of the sunspot areal dataset. Examined are the annual variations of the northern (N) and southern (S) hemispheric sunspot area (SSA), number of active region entries (NARE), and the mean area per entry (MAE) for the interval 1875-2017, spanning solar cycles (SCs) SC12-SC24. For the overall interval of 1875-2019, SSA(N) has been larger than SSA(S) for 77 of the 145 years. Likewise, for SC12-SC24, SSA(N) has been greater than SSA(S) during the ascending phase of the solar cycle (i.e., 35 of 52 years), whether the SC is an even- or odd-numbered SC, while SSA(S) has been greater than SSA(N) during the descending phase of the solar cycle (51 of 93 years). Minimum SSA(N) and SSA(S) have occurred in the same year in only 7 of 13 SCs, including SC14, SC16 and SC19-SC23. Maximum SSA(N) and SSA(S) have occurred in the same year only once (in SCI5). Maximum SSA(S) usually occurs after maximum SSA(N), true for 9 of 13 SCs. Maximum SSA(S) preceded maximum SSA(N) in SC16, SC18, and SC19. Multiple peaks in SSA(N) or SSA(S), typically 2-3 years apart, have often been seen (e.g., SC12-SC16 and SC18-SC22). SC12 had the smallest maximum SSA(N) (452.0 millionths of a solar hemisphere), while SC19 had the largest maximum SSA(N) (2,277.2 millionths of a solar hemisphere). SCI4 had the smallest SSA(S) (600.3 millionths of a solar hemisphere), while SC18 had the largest SSA(S) (1,642.9 millionths of a solar hemisphere). The average time from minimum to maximum SSA(N) is 3.8 years (range 2-5 years), while it is 4.8 years for SSA(S) (range 3-6 years). The average time from maximum SSA(N) to the following minimum SSA(N) is 6.9 years (range 5-9 years), while it is 6.2 years for SSA(S) (range 5-8 years). The largest N-S asymmetry coefficients for SSA occurs between -3 and +1 years about sunspot minimum. The largest N-S asymmetry coefficient in SSA occurred in 2019 (SC24). The largest area sunspot occurred in 1947 (SC18) in the southern hemisphere and measured 6,132 millionths of a solar hemisphere, nearly twice the size of the average maxima of the largest area spots in the other 12 SCs. SSA and NARE are highly correlated with each other and with SSN. Minimum MAE(N) and MAE(S) may have occurred, respectively, in 2018 and 2019, highly suggestive that SSN(m) for SC25 either occurred in 2019 or will occur in 2020., INTRODUCTION This is the second paper in an anticipated three-part study of the sunspot areal dataset, 1875-2017. Paper I (Wilson 2020) provided a general overview of the sunspot areal dataset, [...]

The new PIC/S data guidance document was published in July 2021. The guidance will be reviewed in two parts, starting with the scope, data governance, and paper records. Blue whales [...]

In this study, we present a methodical qualitative and quantitative analysis of H-Classic publications that have made key contributions and identify intensive mainstream research areas in atomic spectroscopy. The main [...]